Hallo
If you have data set not appropriate for persp plotting directly,
maybe you can find some help in interp() function from akima
package.
Cheers
Petr Pikal
On 20 Sep 2003 at 11:41, Mario Alberto Cozzuol wrote:
Hi,
I am doing my way on R, with much experimenting. So, I am trying to
Monica,
gstat has interpolation facilities for real 3D data: IDW, as
well as variogram modelling kriging prediction and simulation.
Try:
library(gstat)
demo(gstat3D)
gstat exists as an R package, as well as a stand alone binary.
The package is at CRAN, the rest at www.gstat.org
best regards,
--
Hi,
I'm using the R nnet package to train a classifier to recognise items which belong to
a particular class and those which don't belong to the class.
I'm supplying nnet with a matrix x containing training examples (in each row) and a
matrix y of targets. The training set is made up of 200
This seems to be a simple problem, and I feel that there ought to be a
simple answer, but I can't seem to find it.
I have a function that returns a number of values as a heterogeneous list -
always the same length and same names(), but a number of different data
types, including character. I
Hi, I have a problem to understand the use of subsets of data while running a
regression model.
In particular, I am using sm.regression with these commands
plot(lndip96,gdip,col=1,type= n)
sm.regression(add=T,lndip96,gdip)
and I must run this model for two subsets of the data; in particular
Dear all,
I've changed the Rprofile file so that jedit would start instead of notepad
whenever I use the fix() command, however nothing get saved when I close the
editor. Any hints on how to use jEdit in a similar fashion to the winedt?
many thanks in advance,
bruno
Hi Ted,
here is something rather imprecise. I have both xgobi and ggobi on my
computer. Up to now, I used almost always xgobi, because it contains the
features that I need. Some of these are not in ggobi (e.g. mean/sd and med/mad
standardization). ggobi has also some instabilties (no details now,
Dear R-proffecionals and users,
I have the following two questions.
I have the cross-country sample. The obeservaions in each country varie substantially
and could not use it for the regression because I have several outliers. I do not want
to lose any information from the sample and would
Hi
my installation of ggobi (!) was successful, but when I try to install
Rggobi as described on http://www.ggobi.org/INSTALL.html:
as non-su:
R_HOME=/usr/lib/R
export R_HOME
GGOBI_ROOT=/usr/local/src/ggobi
export GGOBI_ROOT
R_LIBS=/usr/lib/R/library
export R_LIBS
as: su
ln -s
Hi,
On Mon, 22 Sep 2003, Christian Hennig wrote:
Hi Ted,
here is something rather imprecise. I have both xgobi and ggobi on my
computer. Up to now, I used almost always xgobi, because it contains the
features that I need. Some of these are not in ggobi (e.g. mean/sd and med/mad
Christoph Lehmann wrote:
Hi
my installation of ggobi (!) was successful, but when I try to install
Rggobi as described on http://www.ggobi.org/INSTALL.html:
as non-su:
R_HOME=/usr/lib/R
export R_HOME
GGOBI_ROOT=/usr/local/src/ggobi
export GGOBI_ROOT
R_LIBS=/usr/lib/R/library
export R_LIBS
as: su
Hi
further to my upgrade question
thanks for pointing me in the right direction any ideas how I get round
the following problem:
I'm trying to install on a Tru64 alpha
ecs1h[jps]69: make
`Makedeps' is up to date.
`libappl.a' is up to date.
`Makedeps' is up to date.
`libnmath.a' is up to date.
Don't know if this will be any faster, and it doesn't give you a data frame,
but the final conversion to data frame is probably fairly easy:
xx - do.call(rbind, lapply(ListOfLists, function(x) do.call(cbind,
x)))
xx
A L T
[1,] 1 a 1064233098
[2,] 2 b 1064233098
[3,] 3 c
Roberto Basile wrote:
Hi, I have a problem to understand the use of subsets of data while running a regression model.
So, why don't you read a manual or some help pages?
Since you already talked about subsets, I would have taken a look at
?subset which points you also to ?[
Please use a sensible
Hi Monica
geoR enables you to do universal kriging, kriging where the mean is
modelled on one or more Z variables, you can do this by specifying the
trend component (your Z variable) with the likfit function (if you are
using maximum liklihood based methods), or with variog function which is
Hi,
What you want to do, i.e. plot a surface representig PH values vs. geographical
coordinates is not trivial enough as to be
easily explained here. Your set of points x, y, and pH are not good enough to feed
them straight into persp as many people
have already pointed out. You must fit a
Dear all,
is there an implemented function to compute a
weighted standard deviation (-like weighted.mean-) in R ?
Thank's a lot in advance
Johannes Schnitzler
__
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
Schnitzler, Johannes wrote:
Dear all,
is there an implemented function to compute a
weighted standard deviation (-like weighted.mean-) in R ?
No, AFAIK. In particular, I'm interested in your definition of a
weighted standard deviation (incl. a reference to that definition).
Uwe Ligges
Perhaps cov.wt will do what you want?
Schnitzler, Johannes wrote:
Dear all,
is there an implemented function to compute a
weighted standard deviation (-like weighted.mean-) in R ?
Thank's a lot in advance
Johannes Schnitzler
__
[EMAIL PROTECTED]
Say I have collected data and used it to construct a linear model.
I now have a new observation and want to use it to update my linear model.
Is there a more efficient way to update the model than recomputing the
linear model from the complete data set?
In other words, can I incrementally
Thomas W Blackwell [EMAIL PROTECTED] writes:
Ruben -
Why not simply save(x, file=new.file.name) ?
See help(save), help(files). The file name must be
quoted, and it must be passed as a named argument to save().
That's not the issue. tclvalue(a) instead of as.character(a) should be
Hi,
I downloaded the pls.pcr package and was experimenting with some of my
data. I have two files: the first contains the obervation matrix, each
line consisting of the parameters for one observation. The other file
contains the dependant variable (one value per line).
The steps I do to do a
I am a novice R user looking to set up different project directories.
In my S+ shortcuts, in the Target field, I use
Splus.exe S_PROJ=D:\MYWORK
Splus.exe S_PROJ=D:\MYWORK2
etc.
Is there a similar way to set up the shortcuts in R?
Would it make sense in R to use multiple shortcuts
On Mon, Sep 22, 2003 at 05:12:07PM +0200, Uwe Ligges wrote:
Schnitzler, Johannes wrote:
Dear all,
is there an implemented function to compute a
weighted standard deviation (-like weighted.mean-) in R ?
No, AFAIK. In particular, I'm interested in your definition of a
weighted standard
On Mon, 22 Sep 2003, Paul Meagher wrote:
Say I have collected data and used it to construct a linear model.
I now have a new observation and want to use it to update my linear model.
Is there a more efficient way to update the model than recomputing the
linear model from the complete data
On Mon, 22 Sep 2003 [EMAIL PROTECTED] wrote:
I am a novice R user looking to set up different project directories.
In my S+ shortcuts, in the Target field, I use
Splus.exe S_PROJ=D:\MYWORK
Splus.exe S_PROJ=D:\MYWORK2
etc.
Is there a similar way to set up the shortcuts in R?
Hi R-users,
How can I found the number of a distinct values in a data frame
(occurrence of distinct values)? The dataframe consists of several
thousands integer numbers.
Thanks,
Rado
--
Radoslav Bonk M.S.
Dept. of Physical Geography and Geoecology
Faculty of Sciences, Comenius University
My google search for Plackett's Algorithm didn't return too much except that
Plackett's algorithm appears to be useful in Control Theory - it is
elaborated as Plackett's algorithm for on-line recursive least squares
estimation. Sounds something like what I want.
I am looking at developing a user
Rado Bonk [EMAIL PROTECTED] writes:
How can I found the number of a distinct values in a data frame
(occurrence of distinct values)? The dataframe consists of several
thousands integer numbers.
It is not clear if you are asking about the number of unique values in
a column in a data frame or
Here is a quick summary, since I always like it when people post the useful
answers they get (thanks very much to the three respondents). What I learnt
was (and apologies to those list members for whom these are not exactly
revelations):
1) When making dataframes, work column-wise not row-wise
OK. Another amateur question.
I have a list with attributes on pine trees, like the stem's location, a logical value
set to T if it's alive, some parameters for growth, diameter, etc. The tree list has
another list in it which is a new data type for me.
I want to make a new list that retains
On Mon, 22 Sep 2003, Douglas Bates wrote:
Rado Bonk [EMAIL PROTECTED] writes:
How can I found the number of a distinct values in a data frame
(occurrence of distinct values)? The dataframe consists of several
thousands integer numbers.
It is not clear if you are asking about the number
On Tue, 2003-09-23 at 07:02, Paul Meagher wrote:
My google search for Plackett's Algorithm didn't return too much except that
Plackett's algorithm appears to be useful in Control Theory - it is
elaborated as Plackett's algorithm for on-line recursive least squares
estimation. Sounds something
Dear Rado and Doug,
At 02:13 PM 9/22/2003 -0500, Douglas Bates wrote:
Rado Bonk [EMAIL PROTECTED] writes:
How can I found the number of a distinct values in a data frame
(occurrence of distinct values)? The dataframe consists of several
thousands integer numbers.
It is not clear if you are
I'm having trouble compiling and installing R as a shared library on
Alpha/OSF1. I used
./configure --enable-R-shlib SHLIB_CXXLDFLAGS=-L/lib/cmplrs/cxx
(Using configure with --enable-R-shlib alone generated Could not
determine SHLIB_CXXLDFLAGS errors.) make and everything else were done
as
I am working with a model that I have to estimate a nonparametric
function. The model is partial linear i.e.
Y=X$\beta$ + f(z) + $\epsilon$
I am using the ' double residual methods' Robinson (1988) Speckman (1988)
where I estimate a nonparametric function for each of the parametric
variables in
Hi there,
I am a graduate student using R for time series modeling. I have a
weeks data with 96 data per day. I am trying to use a seasonal model
with period of 96 (the size of the total data is 480) to
fit the data after deriving the order information from ACF
and PACF plots. But, I am
Please do forget my questions as they are really trivial and I do not kno
what I was thinking of.
Thank you thomas for clarifying my cloudy head today.
jean,
On Mon, 22 Sep 2003, Jean Eid wrote:
I am working with a model that I have to estimate a nonparametric
function. The model is partial
Hi,
I am working on a package which requires separate documentation
(tutorial documentation, really, with a lot of beautifully
latexed equations), and does not use R-help. I am trying to
make it so that my help function will automatically search
R-help if the help topic isn't found in my
Hi There
I have a lm object with 4 parameters and I want to test wether 2 parameters
are equal using a Wald test (basically b1=b2 or b1-b2 =0). In the help file
from R it says that under ANOVA the optional arguments Terms or L test
whether a linear combination is equal to 0. I tried;
From basic statistics principle,we know,given several i.i.d Gaussian RVs with zero or
nonzero mean,the sum of square of them is a central or noncentral Chi-distributed
RV.However if these Gaussian RVs have different variances,what does the sum of square
of them obey?
Thanks in advance.
Dear R-helpers,
i get some strange results using a linear mixed-effects model (lme), of the type:
lme1 - lme(y ~ x, random=~x|group, ...)
For some datasets, i obtain very small standard deviations of the random effects. I
compared these to standard deviations of the slope and intercept using a
Greetings All,
Been playing with R and it is very easy to get going with the UI or infile batch
commands :-)
What I am wondering is how scalable and fast R is for running as part of a web
service. I believe R is written in C which is a great start, but what are peoples
general thoughts on
I got a shock a few days ago when I accidentally visited
www.r-project.com . I thought that the r-project site had been hacked
until I realised my mistake. There is also a site www.r-project.net.
Both of these sites appear to be Japanese. Does anyone know anything
about them? I suppose that it
To add to the confusion, there is some statistical software for multivariate and
spatial analysis called the R package.
http://www.fas.umontreal.ca/biol/casgrain/en/labo/R/index.html
Although this link appears to be broken at the moment.
Simon.
Simon Blomberg, PhD
Depression Anxiety Consumer
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